.checkBox {
    border: 1px solid #e6e6e6;
    border-top: none;
    padding: 10px;
    overflow: auto;
    height: -webkit-calc(100vh - 110px);
    height: -moz-calc(100vh - 110px);
    height: calc(100vh - 110px);
}

.checkBox .block {
    float: left;
    margin: 5px;
    padding: 6px 6px;
    width: 98px;
    height: 30px;
    text-align: center;
    line-height: 30px;
    border: 1px solid #ccc;
    position: relative;
    cursor: pointer;
    overflow: hidden;
    border-radius: 5px 5px 5px 5px;
    margin: 10px 15px 0px 0;
}

.checkBox .block .choice {
    position: absolute;
    right: 0px;
    bottom: 0px;
    display: none;
}

.checkBox .block.on {
    border: 1px solid #4A5B79;
}

.checkBox .block.on .choice {
    position: absolute;
    right: 0px;
    bottom: 0px;
    display: block;
}

.checkBox .block.on .choice .triangle {
    position: absolute;
    right: 0px;
    bottom: 0px;
    border-bottom: 8px solid #4A5B79;
    border-left: 8px solid transparent;
}

.checkBox .block.on .choice .right {
    position: absolute;
    right: 5px;
    bottom: 5px;
    width: 10px;
    height: 10px;
}

.checkBox .block .del {
    width: 0px;
    height: 0px;
    background: #fff;
    border: 0px solid #ccc;
    border-radius: 3px;
    overflow: hidden;
    cursor: pointer;
    position: absolute;
    bottom: -20px;
    right: 0px;
    transition: background .3s ease, border .2s ease, bottom .2s ease;
    display: block;
}

.checkBox .block .del:hover {
    background: #FF5722;
    border: 1px solid #FF5722;
}

.checkBox .block:hover .del {
    bottom: 0px;
}

.checkBox .block.on .del {
    display: none
}